国家根据( )对环境的影响程度,对建设项目的环境影响评价实行分类管理。
A.建设项目 B.规划C.规划和建设项目 D.以上都不对
参考答案:A
-Why didn’t you go to the party ?
_______ an invitation, I would have gone to the party .
A.Had I received
B.If I received
C.If I should receive
D.Were I to receive
双侧后牙游离缺失时为预防义齿下沉,下列设计哪项不正确()
A.设计平衡力强的间接固位体
B.采用压力功能印模法
C.采用RPI卡环组
D.减轻力
E.多设计支托,减小基托面积